The document provides an introduction to Internet of Things (IoT) and machine-to-machine (M2M) communication. It describes the key components of an IoT system including IoT devices, gateways, and platforms. Common IoT protocols like CoAP and MQTT are also discussed. The document emphasizes the need for standardization in IoT to enable interoperability and presents oneM2M as a global initiative working to develop standards for the IoT through a common service layer.